bikeboy23332

i am wondering if there are rear disk brakes on a 88 se base model rx7. looking for a brake dust shroud for my turbo II.

mazdaverx713b

iTrader: (91)

yes, the SE had rear disc brakes. all 86 and up RX-7's got the four wheel disc brakes. for 1988, the TII, 10AE, GTU, and convertible had fixed four piston front calipers and single piston rear calipers.

clokker

iTrader: (2)

All second gen RX's came with rear disks.
The only difference is the base model's non-vented rotors compared to the higher end vented units.

daviddeep

iTrader: (4)

In addition to the cars on your list, the GXL and Turbo had the 4-piston fronts and vented rear discs from '86-91. The GTUs also got them from '89-90.

need RX7

iTrader: (4)

A little off-topic, would an '89 vert have teh 4-piston front brakes? I know some of the S5's ended up with the 5-lug/single piston combo, is the vert one of them?

daviddeep

iTrader: (4)

The 'Verts all had the 4-piston brakes. The only S5s with the base brakes were the GTU cars. Weirdly, the '88 GTU is very similar to the S5 GTUs, whereas the S5 GTU is essentially an '88 SE with 5-lug hubs.

This kind of question used to be answerable in the FAQ section by consulting the original Mazda spec brochures, but they disappeared when Icemark passed away since they were hosted on his personal site. However, the moderators are working on restoring them. For now, they can be found in this thread (see Post #22 and following):

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/restoring-stickies-after-passing-icemark-850967/

bikeboy23332

so will my 88 se parts car have the aluminum brake dust shroud?
Thanks Shane

RotaryRocket88

iTrader: (7)

Yes, unless they have been removed.

bikeboy23332

woot thanks guys

daviddeep

iTrader: (4)

Yeah, but will the '88 SE aluminum shields fit the vented rotors of your TII? Isn't that what you're hoping to do? Since the rotors were different diameters, you may have a problem.

RotaryRocket88

iTrader: (7)

^ Good point. The '87 base model had 10.2" rear disks (I'm assuming '86 was the same), while all others had 10.7" disks. The dust shields have a decent amount of clearance on the cars w/ 10.7" disks, but if the SE was fitted with smaller versions, you may have to bend/cut them to fit properly.

mazdaverx713b

iTrader: (91)

i thought the GXL had single pistopn front calipers..i could be wrong though..

RotaryRocket88

iTrader: (7)

Nope, both S4 & S5 GXLs had the 4-pots. Only S4 base models and the S5 GTU (base model really) got the single piston calipers.

need RX7

iTrader: (4)

Good. I'm looking at picking up a vert shell very soon for the sole purpose of taking all the 5-lug/4-pot parts off of it.

RotaryRocket88

iTrader: (7)

It'll be a nice upgrade. Don't forget to grab the master cylinder too. Maybe you can settle for the rest of us what exactly the difference is between the MCs on 4-pot NAs and single piston NAs, if any. It was brought up in Clokker's "Holy Grail" thread.

mazdaverx713b

iTrader: (91)

well, thats excellent to know. i learned something today! thank you guys for that info! i guess it shows through that i've been a first gen guy for the last 11 years, lol. my 10AE is currently my only FC. i've had two brilliant black 88 TII's though.

need RX7

iTrader: (4)

I'd love to, but I'll need an engine first I've never actually driven the car with the single piston brakes, but I love the 4-pots on my Sport.

daviddeep

iTrader: (4)

Having owned cars with both braking systems, I'd say the base system is more than adequate for street driving, but the 4-piston setup stops a little faster. As to the physical differences between the two master cylinders, I have no idea.